Implementation and Characterization of X-Ray Medical Imaging System
Abdelhady Ali Hassen Ellakany;
Abstract
X-ray imaging is a well-known imaging modality that has been used for over 100 years since Roentgen discovered X-rays based on his observations of fluorescence. His initial results were published in 1885. Since 1901, equipment manufacturers started selling X-ray equipment.
Today, X-ray and its three-dimensional (3D) extension, computed tomography (CT), are used commonly in medical diagnosis. Medical imaging system consists of source of x-ray and detectors. The detectors are developed to meet future medical application like decreasing charge sharing.
The 3D silicon detector structure and 3D cadmium telluride (CdTe) detector structure are investigated. The simulation of the 3D structure is carried out by using SILVACO TCAD. The obtained results are used as a proof of concept for investigating the 3D detectors in different scientific applications. Also, it is designed to have a good charge collection efficiency, position resolution and reduced charge sharing effects.
The collection time of 3D silicon detector evaluated 6 nsec at 1.5 V, 4 nsec at 3.3 V and stray capacitance of structure is .14 Pf at 10 V, the leakage current at 3.3 volts is about 9nA.
The collection time of the 3D CdTe structure is about 4×10-11s at 15 V. The fast and hard detection of the structure makes it suitable for stopping power up to 3TeV, which meets the future applications of SLHC. The very low leakage current, which is about 16 pA at 16 volts, is very attractive for most future ap
Today, X-ray and its three-dimensional (3D) extension, computed tomography (CT), are used commonly in medical diagnosis. Medical imaging system consists of source of x-ray and detectors. The detectors are developed to meet future medical application like decreasing charge sharing.
The 3D silicon detector structure and 3D cadmium telluride (CdTe) detector structure are investigated. The simulation of the 3D structure is carried out by using SILVACO TCAD. The obtained results are used as a proof of concept for investigating the 3D detectors in different scientific applications. Also, it is designed to have a good charge collection efficiency, position resolution and reduced charge sharing effects.
The collection time of 3D silicon detector evaluated 6 nsec at 1.5 V, 4 nsec at 3.3 V and stray capacitance of structure is .14 Pf at 10 V, the leakage current at 3.3 volts is about 9nA.
The collection time of the 3D CdTe structure is about 4×10-11s at 15 V. The fast and hard detection of the structure makes it suitable for stopping power up to 3TeV, which meets the future applications of SLHC. The very low leakage current, which is about 16 pA at 16 volts, is very attractive for most future ap
Other data
| Title | Implementation and Characterization of X-Ray Medical Imaging System | Other Titles | دراسة وتنفيذ نظام تصوير طبى باشعة أكس | Authors | Abdelhady Ali Hassen Ellakany | Issue Date | 2017 |
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